1140140437 has 8 divisors (see below), whose sum is σ = 1148731416. Its totient is φ = 1131566592.

The previous prime is 1140140431. The next prime is 1140140453. The reversal of 1140140437 is 7340410411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87721956 + 1052418481 = 9366^2 + 32441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140140437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140140431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149673 + ... + 157105.

It is an arithmetic number, because the mean of its divisors is an integer number (143591427).

Almost surely, 2^1140140437 is an apocalyptic number.

It is an amenable number.

1140140437 is a deficient number, since it is larger than the sum of its proper divisors (8590979).

1140140437 is an equidigital number, since it uses as much as digits as its factorization.

1140140437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8567.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1140140437 is about 33765.9656607063. The cubic root of 1140140437 is about 1044.6868217449.

Adding to 1140140437 its reverse (7340410411), we get a palindrome (8480550848).

The spelling of 1140140437 in words is "one billion, one hundred forty million, one hundred forty thousand, four hundred thirty-seven".